{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naltrexone+%28oral+tablets%29&page=2",
    "query": {
      "intervention": "Naltrexone (oral tablets)",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 37,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naltrexone+%28oral+tablets%29&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naltrexone+%28oral+tablets%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T21:48:37.098Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT04547985",
      "title": "Naltrexone Treatment for Prolonged Grief Disorder (PGD)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Prolonged Grief Disorder"
      ],
      "interventions": [
        {
          "name": "Naltrexone HCl 50 MG Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2021-01-05",
      "completion_date": "2023-10-16",
      "has_results": true,
      "last_update_posted_date": "2024-08-28",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04547985"
    },
    {
      "nct_id": "NCT03482479",
      "title": "Low Dose Naltrexone to Improve Physical Health in Patients With Vasculitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Eosinophilic Granulomatosis With Polyangiitis (EGPA)",
        "Churg-Strauss Syndrome (CSS)",
        "Giant Cell Arteritis",
        "Granulomatosis With Polyangiitis",
        "Microscopic Polyangiitis",
        "Polyarteritis Nodosa",
        "Takayasu Arteritis"
      ],
      "interventions": [
        {
          "name": "Naltrexone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo Comparator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2019-02-04",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 6,
      "location_summary": "Boston, Massachusetts • Rochester, Minnesota • Cleveland, Ohio + 3 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03482479"
    },
    {
      "nct_id": "NCT04056182",
      "title": "Lofexidine for Management of Opioid Withdrawal With XR-NTX Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "Lofexidine 0.18 MG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 20,
      "start_date": "2019-09-01",
      "completion_date": "2021-01-29",
      "has_results": true,
      "last_update_posted_date": "2021-12-09",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04056182"
    },
    {
      "nct_id": "NCT01015066",
      "title": "Comparison of Buprenorphine/Naloxone With Naltrexone in Opioid Dependent Adolescents",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opiate Addiction"
      ],
      "interventions": [
        {
          "name": "Buprenorphine/naloxone",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "16 Years to 25 Years"
      },
      "enrollment_count": 0,
      "start_date": "2009-11",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2014-06-10",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01015066"
    },
    {
      "nct_id": "NCT01462227",
      "title": "Effect of Naltrexone on Counterregulatory Mechanisms in Hypoglycemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoglycemia"
      ],
      "interventions": [
        {
          "name": "Naltrexone High Dose",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone Low Dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 17,
      "start_date": "2011-08",
      "completion_date": "2013-10",
      "has_results": true,
      "last_update_posted_date": "2016-02-18",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01462227"
    },
    {
      "nct_id": "NCT04553263",
      "title": "Relapse Prevention in Stimulant Use Disorder",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Stimulant Use",
        "Relapse",
        "Cognitive Function",
        "ADHD"
      ],
      "interventions": [
        {
          "name": "Contrave 8Mg-90Mg Extended-Release Tablet",
          "type": "DRUG"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-06-11",
      "completion_date": "2025-01-11",
      "has_results": false,
      "last_update_posted_date": "2023-09-22",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04553263"
    },
    {
      "nct_id": "NCT04313972",
      "title": "IC PaIN Trial: Interstitial Cystitis Pain Improvement With Naltrexone",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Interstitial Cystitis",
        "Painful Bladder Syndrome",
        "Bladder Pain Syndrome",
        "Low Dose Naltrexone",
        "Low-dose Naltrexone",
        "Naltrexone"
      ],
      "interventions": [
        {
          "name": "low-dose naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endeavor Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "110 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 110 Years · Female only"
      },
      "enrollment_count": 3,
      "start_date": "2021-09-07",
      "completion_date": "2023-02-23",
      "has_results": true,
      "last_update_posted_date": "2025-03-07",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "Skokie, Illinois",
      "locations": [
        {
          "city": "Skokie",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04313972"
    },
    {
      "nct_id": "NCT06140420",
      "title": "Naltrexone for Prolonged Grief Disorder",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Naltrexone HCl 50 MG Oral Tablet",
        "Placebo"
      ],
      "interventions": [
        {
          "name": "Naltrexone Oral Product",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Texas Tech University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 7,
      "start_date": "2023-08-01",
      "completion_date": "2025-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-18",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06140420"
    },
    {
      "nct_id": "NCT05007561",
      "title": "Understanding How Opioids Affect the Experiential and Neural Signatures of Social Experiences",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Naltrexone",
        "Placebo"
      ],
      "interventions": [
        {
          "name": "Naltrexone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 217,
      "start_date": "2021-11-16",
      "completion_date": "2026-03-18",
      "has_results": false,
      "last_update_posted_date": "2026-09-10",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05007561"
    },
    {
      "nct_id": "NCT02978417",
      "title": "Feasibility Study of Extended-release Naltrexone (Vivitrol) in Drug Court Settings",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Naltrexone for extended-release injectable suspension",
          "type": "DRUG"
        },
        {
          "name": "Oral naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 14,
      "start_date": "2017-09-21",
      "completion_date": "2019-06-30",
      "has_results": true,
      "last_update_posted_date": "2020-06-16",
      "last_synced_at": "2026-10-01T21:48:37.098Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02978417"
    }
  ]
}